High Energy Physics - Phenomenology
[Submitted on 26 Jul 1998]
Title:Two-Color QCD and Aharonov-Bohm Fluxes
View PDFAbstract: We investigate the effects of several Abelian Aharonov-Bohm fluxes $\phi$ on the Euclidean Dirac spectrum of light quarks in QCD with two colors. A quantitative change in the quark return probability is caused by the fluxes, resulting into a change of the spectral correlations. These changes are controlled by a universal function of $\sigma_L \phi^2$ where $\sigma_L$ is the pertinent Ohmic conductance. The quark return probability is sensitive to Abelian flux-disorder but not to $Z_2$ flux-disorder in the ergodic and diffusive regime, and may be used as a probe for the nature of the confining fields in the QCD vacuum.
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